FATEALLCHEM Résumé de rapport

Study of ecotoxicological effects (lethal and sublethal) and potential of selected allelochemicals and their degradation products on non target soil and aquatic organisms

The effects of the cereal allelochemicals and naturally occurring degradation products which had been identified in the course of the project FATEALLCHEM on the two soil organisms Folsomia candida (collembola) and Poecilus cupreus (carabid beetle) and on the aquatic organisms Daphnia magna (micro-crustaceae), Pseudokirchneriella subcapitata (former: Selenastrum capricornutum, freshwater algae) Chlorella pyrenoidosa (soil algae) and Vibrio fischeri (marine bacterium) were assessed to detect potential adverse effects on the non target organisms representing four different trophic levels and two ecotoxicological compartments.

The results can be implemented into a risk assessment procedure, such as for the authorization of plant protection products (Directive 91/414/EEC) to evaluate, whether plants with increased allelochemical properties could pose a risk to soil non targets organisms, which are known as beneficials for the soil ecosystem especially in arable crop production.